Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the getorgcollectionsdetails endpoint (GET /api/organizations/{orgid}/collections/details) is missing the hasfullaccess() authorization check that exists on the sibling getorgcollections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve the names, UUIDs, user-to-collection mappings, and group-to-collection mappings for all collections in the organization. This issue has been fixed in version 1.35.5.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33420.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "1.35.5"
}
],
"source": "AFFECTED_FIELD"
}
],
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-862"
]
}